試題詳解

65.According to the author, “there have been mixed findings regarding the long-term effects of its use.” What does it mean?
(A) There may be side-effects for the long-term use of the medication.
(B) There is no problem for the long-term use of the medication.
(C) The medication can only be effective for a short period of time.
(D) The medication is more effective for children than adults.